How to Descale a Plumbed-In Espresso Machine

If you’re a coffee snob, you know the secret to a perfect espresso isn’t just in the beans but in the coffee machine. Maintenance is key to keeping your espresso machine running smoothly and descaling is part of that. In this guide, we’ll walk you through how to descale your plumbed-in espresso machine so your coffee stays top-notch.

Why Descaling is Important

Water contains minerals like calcium and magnesium which can build up in your espresso machine over time. This build-up is called limescale and can affect the machine’s performance, the flavor of your coffee, and even lead to costly repairs due to coffee residue. Descaling removes these mineral deposits and extends the life of your machine and helps to ensure the best-tasting coffee.

What You’ll Need

• Descaling solution (for your machine’s make and model)
• Citric acid (as an alternative descaling solution)
• Clean water
• A container to catch the water
• Soft cloth or sponge

Step by Step Guide

Step 1: Read the Manual

Before you start always read the manual for your machine for specific descaling instructions and recommended products. Manufacturers often have specific guidelines for their machines, including the filter setup.

Step 2: Prepare the Descaling Solution

Mix the descaling solution or citric acid with water as per the instructions on the product label. Make sure you have enough solution to fill the water tank. For machines with a heat exchanger, ensure the descaling solution reaches this component to prevent scaling.

Step 3: Empty the Machine

Turn off your espresso machine or coffee maker and unplug it. If your machine has a built-in water filter, remove it. Empty the water reservoir and drip tray and rinse them thoroughly.

Step 4: Fill the Water Reservoir

Pour the descaling solution into the water reservoir. Reattach the reservoir to the machine. Using hot water can help dissolve the descaling solution more effectively.

Step 5: Run the Descaling Cycle

Plug in and turn on your espresso machine. Run a descaling cycle as per the instructions in the manual. This will usually involve running the solution through the machine’s components. Ensure the descaling solution reaches the steam boiler to prevent scale buildup.

Step 6: Rinse the Machine

Once the descaling cycle is complete empty and rinse the water reservoir thoroughly. Fill it with clean water and run another cycle to flush out any remaining descaling solution. Do this at least twice to make sure there’s no residue left. Use the water wand to ensure all descaling solution is flushed out.

Step 7: Clean and Reassemble

Wipe down the exterior of the machine with a soft cloth, as you would with other coffee machines. Clean any removable parts like the drip tray and portafilter with warm soapy water. Reassemble your machine including reattaching the water filter.

FAQs

How often should I descale my plumbed-in espresso machine?

The frequency of descaling depends on the hardness of your water and how often you use your machine. Generally every 3-6 months. If you have hard water you may need to descale more often.

Can I use vinegar to descale my espresso machine?

Some people use vinegar as a natural descaling agent but it’s not recommended for most espresso machines. Vinegar can leave a strong odour and taste residue and may not be effective against heavy limescale build up. Always use a descaling solution recommended by your machine’s manufacturer.

What happens if I don’t descale my espresso machine?

Not descaling your machine can lead to several issues including reduced water flow, temperature fluctuations and poor tasting coffee. Over time limescale build up can damage the internal components and cost you repairs or a new machine.

Is the descaling solution safe?

Yes, the descaling solution is safe for use in espresso machines. But always use as directed and rinse your machine thoroughly after descaling to remove any residue from the process.

How do I know if my espresso machine needs descaling?

If your machine is showing any of these signs it needs descaling: longer brewing times, unusual noises, reduced steam and a change in coffee taste. If you see any of these symptoms it’s time to descale.

The Last Drop

By following these steps and descaling your plumbed-in espresso machine regularly you’ll keep it in top condition and brewing great coffee every time.